A United Airlines flight turned back to Newark after 90 minutes. In a statement shared with Business Insider, a United Airlines spokesperson said the flight returned to Newark "to address a disruptive passenger." One Reddit user who said they were on the flight said the plane turned around after a business-class passenger threatened the aircraft's security. AdvertisementLast month, a Delta Air Lines plane turned back over the coast of Newfoundland after the crew observed a potential engine issue. Then, a KLM flight U-turned over the Atlantic Ocean and headed back to Amsterdam in a four-hour flight to nowhere as a precaution due to a technical malfunction.

---

Persons: UA940 Organizations: United Airlines, Passengers, Boeing, London Heathrow, Business, Authority of New, BI, Delta Air Lines, KLM Locations: Newark, London, Nova Scotia, New Jersey, Authority of New York, Canada, Newfoundland, Amsterdam